Method for calling a bobbin-changing device

Abstract

A method for calling a travelling bobbin-changing device to a winding station of a bobbin winding machine, each winding station having a thread presence monitor for monitoring the presence of a thread, a bobbin-stoppage indicator for indicating stoppage of rotation of the bobbin, and a bobbin filling indicator for indicating a predetermined fullness or thread length or diameter of the bobbin, includes continuously checking for the presence of a thread connected to the bobbin with the thread presence monitor, continuously checking for a stoppage of the rotation of the bobbin with the bobbin-stoppage indicator, continuously checking for the predetermined fullness or thread length or diameter of the bobbin with the bobbin filling indicator, issuing a signal when simultaneously the thread is present, the rotation of the bobbin has stopped and the predetermined fullness or thread length or diameter of the bobbin has been reached, and stopping the bobbin-changing device at the winding station for exchanging the bobbin with an empty bobbin tube when the signal is issued.

I claim: 
     
       1. Method for calling a travelling bobbin-changing device to a winding station of a bobbin winding machine, each winding station having a thread presence monitor for monitoring the presence of a thread, a bobbin-stoppage indicator for indicating stoppage of rotation of the bobbin, and a bobbin filling indicator for indicating a predetermined fullness of the bobbin, which comprises continuously checking for the presence of a thread connected to the bobbin with the thread presence monitor, continuously checking for a stoppage of the rotation of the bobbin with the bobbin-stoppage indicator, continuously checking for the predetermined fullness of the bobbin with the bobbin filling indicator, issuing a signal when simultaneously the thread is present, the rotation of the bobbin has stopped and the predetermined fullness of the bobbin has been reached, and stopping the bobbin-changing device at the winding station for exchanging the bobbin with an empty bobbin tube when the signal is issued. 
     
     
       2. Method for calling a travelling bobbin-changing device to a winding station of a bobbin winding machine, each winding station having a thread presence monitor for monitoring the presence of a thread, a bobbin-stoppage indicator for indicating stoppage of rotation of the bobbin, and a bobbin filling indicator for indicating a predetermined thread length of the bobbin, which comprises continuously checking for the presence of a thread connected to the bobbin with the thread presence monitor, continuously checking for a stoppage of the rotation of the bobbin with the bobbin-stoppage indicator, continuously checking for the predetermined thread length of the bobbin with the bobbin filling indicator, issuing a signal when simultaneously the thread is present, the rotation of the bobbin has stopped and the predetermined thread length of the bobbin has been reached, and stopping the bobbin-changing device at the winding station for exchanging the bobbin with an empty bobbin tube when the signal is issued. 
     
     
       3. Method for calling a travelling bobbin-changing device to a winding station of a bobbin winding machine, each winding station having a thread presence monitor for monitoring the presence of a thread, a bobbin-stoppage indicator for indicating stoppage of rotation of the bobbin, and a bobbin filling indicator for indicating a predetermined diameter of the bobbin, which comprises continuously checking for the presence of a thread connected to the bobbin with the thread presence monitor, continuously checking for a stoppage of the rotation of the bobbin with the bobbin-stoppage indicator, continuously checking for the predetermined diameter of the bobbin with the bobbin filling indicator, issuing a signal when simultaneously the thread is present, the rotation of the bobbin has stopped and the predetermined diameter of the bobbin has been reached, and stopping the bobbin-changing device at the winding station for exchanging the bobbin with an empty bobbin tube when the signal is issued.